Database Management System-Test Bank

A database management system (DBMS) is a set of programs that allow users to create and maintain a database; it also includes a set of interrelated data and programs to access that data. Therefore, a DBMS is a general-purpose software system that facilitates the processes of defining, creating, and manipulating databases for various purposes.
The main purpose of a DBMS is to provide an environment that is both functional and efficient in retrieving and storing database information. It serves as an interface between the user of software programs, on one hand, and the database, on the other. The objective of Database Management System: An Evolutionary Approach, is to enable the learner to grasp a fundamental understanding of a DBMS, its necessity, and its terminologies; distinguish between traditional file-based systems and a DBMS approach while learning to understand concepts practically; examine provided examples and case studies for better comprehension.
This book is intended to give undergraduate and postgraduate students a basic background in DBMSs. The book follows an evolutionary learning approach that emphasizes the fundamental concepts and lays a strong foundation to study more advanced topics including normalizations, relational algebra, PL/SQL, transactions, concurrency control, etc. This book also provides detailed information with a focus on entity-relationship (ER) diagrams and their transformations into tables, with ample SQL codes for a more practical understanding.